CVE-2026-55463

Goobi viewer: WebSocket endpoints lack server-side authentication and origin validation

State: Published
Severity: 6.5 Medium
Published: Oct 23, 2026
Updated: Oct 29, 2026
Reserved: Jun 16, 2026

Description

The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. From version 4.11.0 to before version 26.05, several Jakarta WebSocket endpoints in goobi-viewer-core (DownloadTaskEndpoint, CampaignEndpoint, AutocompleteEndpoint, UserEndpoint) accept connections without verifying that the associated HttpSession belongs to a logged-in user, and none validate the Origin header against an allowlist. An unauthenticated attacker can therefore connect to these endpoints; through CampaignEndpoint this allows polluting the in-process crowdsourcing page-lock map and broadcasting forged lock messages, disrupting reviewers' work. This issue has been patched in version 26.05.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N	GitHub_M

Weaknesses

CWE-306 Missing Authentication for Critical Function
CWE-862 Missing Authorization
CWE-1385 Missing Origin Validation in WebSockets

Affected Products

Product	Versions
goobi-viewer-coreintranda	>= 4.11.0, < 26.05Affected

References

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